Pre-Tax Gains Related to Derivatives Not Designated as Hedges (Detail) (Not Designated as Hedging Instrument, Foreign Exchange Forward Contracts, Selling, General and Administrative Expenses, USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Not Designated as Hedging Instrument | Foreign Exchange Forward Contracts | Selling, General and Administrative Expenses
Derivative Instruments Gain Loss [Line Items]
Total (gain) loss recognized in the consolidated statements of operations	$ 17.0	$ 24.8	$ 4.7